Title :
Millimeter-wave scattering and attenuation in limited vegetation structures
Author :
Didascalou, D. ; Younis, M. ; Wiesbeck, W.
Author_Institution :
Inst. fur Hochstfrequenztech. und Elektronik, Karlsruhe Univ., Germany
Abstract :
A novel numerical algorithm based on the radiative transfer equation (RTE) is presented, which allows to calculate the attenuation of mm-waves propagating in limited vegetation structures, such as e.g. single trees, bushes etc. For this purpose, the RTE is stated in a discrete form and the vegetation structure is discretized in elementary volumes. A step-by-step solution is proposed, to solve for the desired path-loss and indications on the influence of the different parameters on the propagation characteristics are given. A qualitative justification of the approach is presented and finally a comparison with scattering measurements of ficus trees at 75 GHz is shown
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; millimetre wave propagation; radiative transfer; 75 GHz; attenuation; discrete form; ficus trees; limited vegetation structures; millimeter-wave scattering; mm-waves; path-loss; propagation characteristics; radiative transfer equation; step-by-step solution; Absorption; Attenuation; Broadband communication; Communication systems; Equations; Millimeter wave communication; Scattering; Sensor phenomena and characterization; Sensor systems and applications; Vegetation;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.772111
